N-HENEICOSANE

CAS NO.：629-94-7
Empirical Formula: C21H44
Molecular Weight: 296.57
MDL number: MFCD00009346
EINECS: 211-118-9
SAFETY DATA SHEET (SDS)
Update Date: 2024-12-18 14:08:52

What is N-HENEICOSANE?

Chemical properties

white waxy solid

The Uses of N-HENEICOSANE

Heneicosane is a long chain saturated aliphatic hydrocarbon found in coal tars and fossil organic matter. Heneicosane has a high flashpoint which makes it an inefficient fuel for use in the petrochemical industry. Heneicosane is usually present in the form of paraffin wax.

Definition

ChEBI: An alkane that has 21 carbons and a straight-chain structure. It has been isolated from plants like Periploca laevigata and Carthamus tinctorius.

Synthesis Reference(s)

Tetrahedron Letters, 17, p. 2643, 1976 DOI: 10.1016/S0040-4039(00)91757-X

General Description

Crystals.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Saturated aliphatic hydrocarbons, such as N-HENEICOSANE, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. When heated sufficiently or when ignited in the presence of air, oxygen or strong oxidizing agents, they burn exothermically to produce carbon dioxide and water.

Properties of N-HENEICOSANE

Melting point:	39-41 °C(lit.)
Boiling point:	100 °C2 mm Hg(lit.)
Density	0,792 g/cm³
vapor density	10.3 (vs air)
vapor pressure	<1 mm Hg ( 20 °C)
refractive index	1.4352 (589.3 nm 45℃)
Flash point:	>230 °F
storage temp.	Refrigerator
solubility	Chloroform, Hexane
form	Crystalline Chunks, Crystals, or Flakes
color	White
Odor	at 100.00?%. waxy
BRN	1748500
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
CAS DataBase Reference	629-94-7(CAS DataBase Reference)
EPA Substance Registry System	Heneicosane (629-94-7)

Safety information for N-HENEICOSANE

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.